Hoop-making machine.



PATENTED APR. 2, 1907.

L. D. soon. HOOP MAKING MACHINE.

APPLICATION FILED FEB. 14, 1906.

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W1 TNESSES:

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No. 848.692. PATENTEDAPR. 2, 190 7. L.D. SCOTT.

HOOPMAKING MACHINE. APPLICATION FILBD'FBB.14, 1906.

WITNESSES; INVENTOR.

A TTORNE Y5 rm; NORRIS PETERS ca. wnsumofom'a c LORENZO D. SCOTT, OF EAST MAOHIAS, MAINE.

HOOP-MAKING MACHINE.

Specification of Letters Patent.

Patented April 2, 1907.

Application filed February 14,1906. Serial No. 301,094.

To all whom it may concern:

' Be it known that I, LORENZO D. Soon, a citizen of the United States, residing at East Machias, in the county of Washington and State of Maine, have invented a new and useful Hoop-Making Machine, of which the following is a specification.

This invention relates to machines for making wooden hoops for barrels,'casks, and. the like, and is primarily designed for trimming the hoops to the desired thickness. It is ,furthermore, designed to provide for a con tinuous feed of the work through the machine in order that the hoops may be successively fed to the machine and be completely trimmed by one passage thereof through the machine.

Another important object of the invention is to provide for the effective trimming of crooked hoops and in this connection to mount the planer so that it will yield to and follow the bends of crooked portions of the work, thereby to .avoid choking the machine and to insure theuniform trimming of the work.

With these and other objects in view the present invention consists in the combination and arrangement of parts, as will be hereinafter incre fully described, shown in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that changes in the form, proportion, size, and minor details may be made Within the scope of the claims without de parting from the spirit or sacrificing any of the advantages of the invention.

In the drawings, Figure 1 is a longitudinal sectional view of a hoop-making machine embodying the features of the present invention. Fig. 2 is a crosssectional view on the line 2 2 of Fig. 1. Fig. 3 is a detail sectional view on the line 3 3 of Fig. 1.

Similar numerals of reference designate corresponding parts in all of the figures of the drawings.

For the support of the operating parts of the present invention I employ a frame made up of corner-posts or leg-standards 1, which support a pair of spaced longitudinal side bars, the corresponding legs being connected by cross-bars 3.

Lying longitudinally above the top of the frame of the machine there is a spring-supported swinging frame made up of side bars 4 and cross-bars 5 connecting the side bars at points inwardly from their ends. Each side bar 4 of the swinging frame is terminally piv- The swinging frame just described constitutes the support for the rotary planer, the latter including a polygonal rotary body 10, preferably triangular in cross-section and keyed or otherwise fixed to a shaft 11, having its ends journaled in bearing-boxesl 2, carried by the under side of the free end portions of the side bars 4. Upon each face of the planerbody is a'knife 13, which has one edge 14 pro jected beyond the adjacent edge of the body and beveled to form a chisel edge, the entire planer being rotated in the direction of the arrows applied to Fig. 1 of the drawings.

For driving the rotary planer there is a drive-shaft 15, mounted transversely across the rear end of the supporting-frame of the machine in suitable boxes, one of which has been shown at 16 in Fig. 1 of the drawings, located above the top of the block 7, the pivotal support 6 of the planer being adjacent to and in vertical alinement with the shaft 15,v whereby the planer-frame swings approxi; mately around the drive-shaft 15 as a center.: A belt-pulley 1-7 is provided upon one end of the shaft 15 for connection with a suitablesource of power, and upon the same end of the shaft there is a larger drive-pulley 18, which is connected to a pulley 20 upon the rotary-planer shaft 11 by means of a belt 21, which is crossed so as to drive the rotary planer in the direction indicated. It will now be explained that the planer-frame 4 is mounted to swing around the shaft 15 as an approximate axis in order that swinging movements of the frame may not affect the drive connection between the pulleys 18 and 20.

In front of the rotary planer there is a set of upper and lower feed-rollers 22 and 23, of which the roller 23 is mounted in fixed bearings upon the main frame, while each end of the upper roller 22 is journaled in a vertically-swinging arm 24, which has its outer end pivotally supported upon a bracket 25, rising from the main frame. The roller 22 is yieldingly forced downward in some approved mannerfor instance, by means of a helical spring 26, bearing upon the top of the arm and embracing a rod 27, which pierces the arm and is fixed to the main frame.

In rear of the rotary planer there is another set of feed-rollers 28 and 29, the upper roller being mounted in a vertical swinging arm 30, pivotally supported by a bracket 31, rising from the main frame. An endwisemovable rod 32 pierces the adjacent side bar 2 of the main frame and is connected to the arm 30, there being a helical spring 33 embracing the rod with its upper end bearing against the under side of the frame portion 2 and its lower end bearing against a head 34, provided upon the lower end of the rod.

The two sets of feed-rolls are driven from a pulley 35 (shown in Fig. 2 of the drawings) and carried by that end of the shaft which is opposite the pulley 18. The pulley is preferably in the nature of a sprocket, which is embraced by a sprocket-chain 36, that also embraces a sprocket 37 upon the adjacent end of the shaft 38 of the rear feed-roll 29, said chain being crossed to drive the feedroll in the direction indicated by the arrow on Fig. 1. Sprockets 39 and 40 are provided upon the shafts of the feed-rolls 23 and 29, and a sprocket chain or belt 41 embraces the sprockets 39 and 40, so as to drive them in t 1e same direction. A yoke-shaped hanger 42 is carried by and depends from the forward free end of the planer-frame beneath the rotary planer, and within this hanger there is a yoke-shaped bracket 43, having a roll or gaging-support 44 journaled in the sides of the bracket adjacent its upper end. As best indicated in Fig. 3 of the drawings, it will be seen that each journal 45 of the gaging support pierces the adjacent side of the bracket 34 and slidably engages a vertical slot 46 formed in the adjacent side of the hanger. Set-screws 47 pierce the base or bottom of the hanger 42 and engage the bottom of the roller-bracket 45, whereby the latter may be adjusted vertically to vary the space between the gaging-support or roll and the rotary planer in accordance with the desired thickness of the work.

In practice a rough hoop is thrust in between the feed-rolls 22 and 23, thence between the gaging-support or roll 44 and rotary planer,-and then in between the feedrolls 28 and 29, after which the hoop will be automatically fed through the machine by the action of the feed-rolls. As the rotary planer works in the direction of the arrow on Fig. 1, it will be seen that the upper face of the rough hoop will be dressed or trimmed to the desired thickness by the action of the planer-knives, and as the operation of the machine is continuous the trimming or dsessing of the hoop will be completed when the hoop has traveled entirely through the machine.

Hoops may be trimmed or dressed to any desired thickness by manipulating the adjusting-screws 47, so as to set the gaging-support or roll 44 at the desired thickness of the work below the rotary planer.

When a crooked hoop is fed to the machine, the pivotally-mounted planer-frame will, of course, yield upwardly to any irregularity in the shape of the hoop, and as the gagingsupport or roll is carried by the planer frame the relation of the rotary planer and the roll are not affected, whereby the dressing or trimming of the crooked portion of the work will be precisely the same as that of the straight portion thereof, and thus the work will be uniformly trimmed or dressed throughout its entire length regardless of any crooked portions therein.

Having thus described the invention, what is claimed is 1. In a machine of the character described, the combination with a stationary frame, of a planer-frame mounted thereon, a spring for normallylimiting the movement of the planerframe in one direction and capable of acting as a buff er to limit the movement of the frame in the other direction, a rotary planer carried by the planer-frame, and a gaging-support carried by the planer-frame.

2. In a machine of the character described, the combination with a main frame, of front and rear feed-rolls, a rotary planer mounted between the feed-rolls, a spring for normally limiting the movement of the planer in one direction and capable of acting as a buffer to limit the movement of the planer in the other direction, and a gaging-support movable with the planer.

3. In a machine of the character described, the combination with a main frame, of front and rear feed-rolls, an upwardly and forwardly inclined springsupported swinging planer-frame mounted upon the main frame and overhanging the space between the feedrolls, a rotary planer carried by the planerframe located between the feed-rolls, and a gaging-support carried by the planer-frame adjustable with respect to the planer.

4. In a machine of the character described, the combination with a main frame, of a drive-shaft, an inclined vertically-movable spring-supported planer-frame, a rotary planer carried by the frame and driven from the driveshaft, a gaging-support carried by the planer-frame, and feed-rolls mounted upon the main frame in front and rear of the planer and driven from the drive-shaft.

5. In a machine of the character described, the combination with a main frame, of a vertically movable swinging planer frame mounted thereon, a support rising from the main frame above the planer-frame, a springhanger carried by the support and connected to the planer-frame, said spring-hanger normally limiting the downward movement of the planer-frame and adapted to act as a buffer to limit the upward movement thereof, a rotary planer carried by the planer-frame, and a gaging-support carried by the planer frame.

6. In a machine of the character described, the combination with a main frame, of 5. rotary planer, a slotted hanger, a roller-bracket, a gage-roller having its journal piercing the bracket and slidably engaging the slotted portion of the hanger, and a setscrew carried by the hanger and engaging the bracket to adjust the latter.

7. In a machine of the character described, the combination with a stationary frame made up of spaced side bars having front and rear feed-rolls extending between the side bars at one end of the frame, the space be tween the side bars in rear of the feed-rolls being open, and an elastically-yieldable ro tary planer mounted between the front and rear feed-rolls.

S. In a machine of the character described, the combination with a frame including spaced side bars having front and rear feedrolls at one end thereof, the space between the bars in rear of the feed-rolls being open, of a drive-shaft mounted across the rear end of the frame, a swinging planer-frame pivotally supported upon the main frame adjacent the drive-shaft and overhanging the space between the front and rear feed-rolls, a

rotary planer carried by the planer-frame between the feed-rolls, a support rising from the main frame, a spring suspending the planer-frame from the support, the feed rolls and the rotary planer being driven from the drive-shaft, a hanger depending from the planerframe and located between the feed-rolls, a roller-bracket adj ustably carried by the hanger, and a gage-roll carried by the bracket.

In testimony that I. claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

, LORENZO D. SCOTT.

Witnesses:

HENRY L. Goooi-r, HARRY Mv GARDNER. 

